Hello there! Since updating Skyrim today I have the same error message with SSEEDit, no matter what I do: I usually use MO2, but I get the same thing even if I only load Skyrim.esm and starting SSEEdit outside the Mod Organizer. I get the message as admin, having turned of antivir, and using the 4.0.1 version. I am really at a loss here... as far as I know it started after updating to the new Skyrim version today. Thanks for any suggestions!